Manifolding apparatus



l 0a. 5,1926.I 1,602,285

F. SCHABER MANIFQLDING APPARATUS l Filed July 12, 1926 2 Sheets-Sheet lZin M'en fr:

F. scHBER l MAMFOLDING APPARATUS y Filed July 12. 192e 2 Sheets-sheet goct. 5,1926. 1,602,285

` I [i @i y V Patented oa. 5, 192e.

UITE

razas MANIFOLDING APPARATUS.

Application led July 12, 1926, Serial No. 121,977, and in GermanyDecember 29, 1923.

In the so called writing through processes or manifolding processes, inwhich the entries to be made are manifolded or written through on toloose sheets, these have heretofore been laid on a writin plate havingpins above it, over which t e correspondingly perforated sheets and themanifolding, (carbon) paper are laid and firmly clamped by a bar whichcan be raised therefrom as and when desired. Other types of writingplates employ clamping springslwhich press upon ,the plate.

The present invention relates to a writing plate which is distinguishedby its simple and durable construction and which permits of the use ofaccounting sheets of any kind, even those without holes, without thenecessity of lemploying a spring which readily become fatigued or actunevenly. The essential feature of the invention is that theinterchangeable sheets are clamped in position by means of a verticallyguided clamping bar by a simple screwing movement by clamping screws,while a second loading bar which acts by its weight holds down thesheets which remain permanently on the writing plate such as themanifolding (carbon) paper for example. The screw threads of theclamping screws may therefore in this apparatus be of so rapid a pitchthat even a slight rotation suffices to release or clamp the sheets. Thetwo bars may be conveniently placed by means of holes or perforationsover pins on the writing plate and so be guided in a straight line.Furthermore there is-provided on the right hand side of the writingplate a guide bar which guides and holds in place a rest or support forthe hand and also serves for the layin on of forms. For certain purposethis gar lies only with its raised ends on the platey and leaves a slitfreebetween itself and the writing plate in the middle so that suchsheets or leaves can be passed therethrough as are wider than thewriting plate or leaves of books which cannot be removed therefrom.

The subject matter of the invention is' shownl in the accompanyingdrawing which illustrates some construct-ional forms thereof.

Figures l to 4 shovi'7 the whole of the manifolding apparatus, Fig. 1being a plan View and Figs. 2 to 4 being-'side views.

Figure 5 is a cross section through the weilghting bar and clamping baron a 'larger sca e. v

Figure 6 is a longitudinal section through the end of weighted bar showninrFigure l on a larger scale.

tween them and lirmly held with their lines in accurate register bydevices which substantially constitute the present invention.Accordingly the sheets are held in place as shown in Figures 1 to 6, and8 and 9 by a clamping bar d which lies loosely on the writing plate andis guided by means of ixedpins over which it is laid by means of holesor openings. As guide pins. either special pins e -may be used (seeFigures 1 and 3) or the bolts p of the screw nuts g may be used bymeansof-which as will be hereinafter described, the clamping bar d is clampeddown upon the writing plate (see Figure 5). The clamping bar al mayconveniently be raised from the writing plate (1 parallel therewith bysprings f so that the accounting and manifolding sheets can beconveniently pushed underneathit when the clamping bar is loosenedwithout having to hold it up by the hand. In order to hold theinterchangeable sheets in place with their lines in accurate registerwithout further assistance a stop is provided for the sheets which mayconsists for example of angle pieces g specially arranged behind theclamping bar and adjustable for example transversely, (see Figure 8). Inorder to avoid separate parts the stops may also be formed by theguidepins p or c of the apparatus consists of the usualM clamping bar(see Figures 1 to 4). The carbon sheet which naturally does not need tobe changed at every fresh entry, and the reinsertion of which every timewith the interchanged sheets would mean a loss of time which must beavoided, is held in place according to the present invention by means ofspecial parts independently of the clamping bar (Z.

This holding device for the carbon sheet consists either of pins Lmounted on the writing plate and over' which the carbon sheet is placedby a corresponding perforation or of a weighted bar la, which is guidedin a straight line on pins Z on the plate and at the same time has itsupward movement so limited by studs Z1, that the weighting bar can beraised just so high by means of a handle m that thecarbon4 sheet can bepushed underneath the bar. The weighted bar 7c may with advantage be soconstructed that its entire. under surface does not bear upon thewriting plate but` only its knife-like edge or edge parts n on the righthand side while on thel opposite side' only a support nl correspondingto the height of theedges n is provided so that the weighted bar shallnot grip by bearing onesidedly on its guide pins (see Figure 5). Theclamping edges a may be conveniently slightly serrated and the surfacewith which itcontacts upon the writing plate also provided with teeth orroughened, (see Figure 7). 'In like manner' the clamping bar d may alsobe so constructed.

The holding of the interchangeable sheets 'b in placeis effectedaccording to this invention by a screw-like movement and through themedium of the clamping bar a1- ready `described above. According to thegure's there are provided herefor screw bolts p of suitably rapid pitchof thread attached to the writing plate a or passed up through it frombelow and which for example pass through the clampingbar ol on to whichis screwed a clamping nut g which bears upon the clamping bar fromabove. Instead of a fixed screw bolt and a nut g screwed on to it I mayobviously also use a screw with a milled head which is screwed into thewriting plate or into a nut fixed thereto. The number and pitch of thethreads may be any that is desired and for example I may also use ashort catch like a bayonet joint as shown in Figure 9. In this case apin t, projecting on both sides for eX- ample is pushed through the bolts and .in the nut u there are provided one or two 'slots lv of a curvedshape so that the sheets can be gripped or released by a screw-likemovement. To prevent lthe sheets b from becoming soiled e. g. by a nail,the pencil or other hard object being unintentionally drawn over themand also to prevent any rucki'ng up of the top loose sheet whenwritvclamping bar ing on it an underlay fw 'for the hand is provided tohold and guide in a guide bar m on the right hand side of the writingplate a and parallel with the clamping underlay/w for the hand is sowide that it fits with a slight amount of clearance just between theclamping bar d and the guide bar and is thus both guided and kept inplace. According to the invention there is hollowed out between thewriting plate a and the guide bar a-slot y as the guide bar only bearsatits raised ends and lies like a bridge over thewriting plate, so thatsheets can be pushed through this slot which are wider than the spacebetween the clamping bar andthe guide bar or the leaves of a book whichcannot be removed therefrom.

When it is desired to lay sheets on loosely only without loosening theclamping bar l and lbring them up against the bar the sheets slide veryeasily between the clamping bar and the writing plate. According to thisinvention this disadvantage can be easily overcome by. arranging smallraised portions at short intervals in front of the clamping bar d (seeFigure 5) which lift the sheet laid on so that it hits up against the.clamping bar but cannot pass under it. These raised portions mayconveniently be constituted by small pins e which are riveted into thewriting plate and the raised heads el of which project beyond it.

l I claim:-

1. A maniiolding device comprising a writing plate; a clamping baradapted to hold the sheets on the late; a plurality of pins for guidingand olding said bar; a plurality of pins :tor a carbon sheet; and aweighted bar guided on said second-named pins for holding the carbonsheet on the plate.

2. .A manifolding device comprising a writing plate; a clamping baradapted to holdl the sheets on the plate; a plurality of threaded pinsfor guiding/andholding said bar; a nut for each pin for securing'thesheets tightly against the plate; a plurality of pins for a carbonsheet; and a weighted bar guided on said second-named pins for holdingthe carbon sheet on the plate.

3. A manifolding device comprising a writing plate; a clamping baradapted to hold the sheets on the plate; a plurality of threaded pinsfor guiding and holding said bar; a plurality of pins for a carbonsheet;

a weighted bar guided on said second-named pins for holding the carbonsheeton thel plete; and a plurality of springs for the in' order toraise and hold the bar in an elevated position from the plate to movethe sheets` under said plate.

4. A manifolding device comprising a writing plate; a clamping baradapted to hold the sheets on the plate; a plurality of threaded pinsfor guiding and holding said bar d. This bar; a plurality of pins for acarbon sheet; a Weighted bar guided on `said secondnamed pins forholding the carbon sheet on the plate; a nut for each pin for securingthe sheets tightly against the plate; and a plurality of springs for theclamping bar in order to raise and .hold the barin an elevated positionfrom the plate When said nuts are loosened to move the sheets under theplate.

5. A manifolding device comprising a writing plate; a clamping baradapted to hold the sheets on the plate; a plurality of studded pins;anda Weighted bar guided on said pins for holdinga carbon' sheet on theplate; said Weighted bar being limited in its upward movement from theplate by the studded pins.

6. A manifolding device comprising a Writing plate; a clamping baradapted to hold the sheetson the plate; a plurality of studded pins; aweighted bar guided on said pins for holding a carbon sheet on theplate, said Weighted bai' being limited in its upward movement from theplate by the 'studded pins; and a handle on said Weighted bar forraising it from the plate.

7. A manifolding device comprising a writing plate; aV clampingbaradapted to hold the sheets on the plate; a plurality of threaded pinsfor guiding and hcldingfsaid barra plurality of studded pins; a Weightedbar guided on said pins forholding a carbon sheet on the plate, saidweighted bar beinglimited in its upward movement from the plate by thestud-ded pins; and a handle on said Weighted bar for raising it from theplate.- y f 8. A manifolding device comprising a writing plate; aclamping bar adapted to hold the sheets on the plate; Ia plurality ofthreaded pins for guiding and holding said bar;la plurality of studdedpins; a nut for each pin for securing the sheets tightly against theplate; a weighted bar guided on said pins -for hol-ding a carbon sheeton the plate, said Weighted bar being limited inits upwardmovementfromthe plate by the studded pins; and a handle on said Weighted bar forraisin@ it from the plate.

9. A maniiblding device comprisin 'a writing plate; a .clamping baradapte to hold the sheets on the plate; a plurality of threaded Pins forguiding and holding said bar; a plurality of studded pins; a nut foreach pin for' Securing the, sheets tightly against the plate' aplurality of springs for tle clamping bar in order to raise and: holdthe bar in an elevated position from the plate to move the sheets undersaid plate; a

' weighted bar guided on said pins for holding a carbon sheet on theplate, said weighted bar being limited in its upward movement from theplate by the studded pins; and a handle on said-Weighted bar for raisingit from the plate.

In testimony whereof I affix my signature.

FRITZ soHABER.

